Camera Module Magnet Opaque Layer Stray Light Reduction
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Solution Overview
Problem
The existing camera modules in portable electronic devices face challenges in enhancing image quality due to issues with stray light and unexpected light simulation, which affect the quality of the image signal.
Innovation Solution
A camera module is developed that includes an imaging lens assembly, an image sensor, and a magnet assembling mechanism. The magnet assembling mechanism consists of a magnet holder, a magnet, and an opaque layer on the magnet's surface, which helps reduce stray light and improve image signal quality by avoiding metallic luster and adjusting the relative position between the imaging lens assembly and the image sensor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a magnet assembling mechanism is used to adjust the relative position between the imaging lens assembly and the image sensor, then the image signal quality can be improved, but stray light and metallic luster may degrade the image quality
Solution Approach 1:
An opaque layer is introduced as an intermediary element between the magnet and the imaging components. This opaque layer blocks stray light and metallic luster from reaching the image sensor, while allowing the magnet to continue functioning for position adjustment. The opaque layer thus mediates between the beneficial magnetic positioning function and the harmful light reflection.
Solution Approach 2:
The magnet, which inherently produces metallic luster and potential stray light reflections, is covered with an opaque layer. This converts the potentially harmful reflective surface into a light-blocking element, transforming the magnet's metallic surface from a source of interference into a functional component that maintains positioning capability while eliminating optical interference.
2Device complexity
If the magnet surface is left with metallic luster, then the magnet assembling mechanism can be simple, but the metallic luster causes unexpected light simulation and reduces image quality
Solution Approach 1:
The opaque layer is applied specifically to the surface of the magnet that faces the imaging components, rather than modifying the entire magnet assembling mechanism. This localized treatment addresses the specific problem of metallic luster causing light reflection, while maintaining the simplicity of the overall mechanism and the magnetic positioning function.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The camera module effectively reduces the possibility of stray light and unexpected light simulation, thereby enhancing the quality of the image signal and improving the overall image quality captured by portable electronic devices.
Implementation Method 1
the opaque layer is disposed on an outer surface of the magnet... effectively reduces the possibility of the generation of the stray light by providing the matte magnet to avoid the surface of the magnet with metallic luster
Data Source
AI summary
A camera module includes an imaging lens assembly, an image sensor and a magnet assembling mechanism. The image sensor is for receiving an image signal of the imaging lens assembly. The magnet assembling mechanism is for defining a status of the image signal of the imaging lens assembly corresponding to the image sensor, wherein the magnet assembling mechanism includes a magnet holder, a magnet and an opaque layer. The magnet is disposed at the magnet holder. The opaque layer is disposed on an outer surface of the magnet.